Product detail
High Alumina Bricks for Hot Blast Furnace
Product introduction:
High alumina brick is a neutral refractory material with an alumina content of more than 48%. It is formed and calcined from bauxite or other raw materials with a high alumina content. It has high thermal stability and a refractoriness of more than 1770℃. It has good slag resistance and is used to build the lining of steelmaking electric furnaces, glass melting furnaces, cement rotary furnaces, etc.
High-load soft, low-creep high-alumina bricks are advanced refractory materials made of special-grade bauxite, fused corundum, and fused mullite as the main raw materials. This product has the advantages of small high-temperature creep, strong erosion resistance, and good thermal shock stability, and is suitable for large and medium-sized hot blast furnaces.
Application:
It is mainly used for building blast furnaces, hot blast furnaces, electric furnace roofs, blast furnaces, reverberatory furnaces, and rotary kiln linings. In addition, high-alumina bricks are also widely used as flat-hearth heat storage checker bricks, plugs for pouring systems, nozzle bricks, etc.
Product Parameters
| High alumina brick grades | Aluminum carbide (Al₂O₃) content |
| Special high alumina bricks | 75%＜Al₂O₃≤85% |
| First-grade high alumina bricks | 70%＜Al₂O₃≤75% |
| Second-grade high alumina bricks | 60%≤Al₂O₃＜70% |
| Third-grade high alumina bricks | 48%＜Al₂O₃＜60% |
| Corundum bricks | Al₂O₃≥90% |
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